Answer:

1. In order to investigate as to how the villagers going up the Aravali hills vanished after a while, Santosh accompanied a few mountaineers in their climbing expedition. This was how she began to climb mountains.

2. During the Everest mission, Santosh showed immense concern for her fellow climbers. Though she was unsuccessful in saving the life of one of them, she did manage to save another climber through artificial respiration.

3. Santosh was a fervent environmentalist. Her concern for the environment is evident from the fact that she collected and brought down 500 kilograms of garbage from the Himalayas.

4. Santosh asserted that her feeling at the summit of the Everest was indescribable. Unfurling the Indian flag on the top of the world was a spiritual moment for her and she felt proud as an Indian.

5. When Santosh Yadav first scaled Mt Everest, she became the youngest woman in the world to achieve the feat. When she scaled the Everest the second time, she became the only woman to have scaled it twice.